I have gone through two batteries in the last eight months? Whats the deal? There is no device on the car that can be leaking battery power... I don't think so at least... how could I find out...
2007-12-05 07:49:14 · 8 answers · asked by Anonymous in Cars & Transportation ➔ Maintenance & Repairs
If nothing is draining it, you could have a bad alternator.
If the battery is draining while the car is running it is the alternator.
If the battery gets drained while the car is just sitting and off, it is a drain from some electrical component. Either something is on (glove box or trunk light or stereo) or you have a bad wire somewhere (a positive power wire is touching the negatively grounded chassis/body somewhere.) Not easy to locate. You need a current meter and a lot of patience to locate the drain.
2007-12-05 08:01:57 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Disconnect the negative battery cable and use a multimeter between the negative post and the battery cable end to see if there is something draining the battery significantly. On the flipside the alternator could be over-charging your batteries shortening their life. Start the car and check the voltage of the battery while the car is running. It should be between 12 and 15 volts, if its more than the battery is being overcharged.
2007-12-05 07:57:46 · answer #2 · answered by scott_mehlman 2 · 0⤊ 0⤋
Have you ever cleaned off the terminals coming from the car? If everything is clean and you have a new battery then it could be your alternator. First check the belt on the alternator, make sure it's snug and what not. But after that I would just put a new alternator in or take it to a trusted shop and see what they say.
2016-05-28 08:03:53 · answer #3 · answered by ? 3 · 0⤊ 0⤋
The alternator must be checked with a volt meter to check the charging rate in volts.
Simply set an inexpensive volt meter @20 volts. With the motor running attach the red lead wire from the volt meter to the battery positive post. Connect the volt meter black lead to the battery negative terminal. You should see a reading of 13.5 - 14.0 volts on the volt meter. If not, you have a sour alternator. Replace it ASAP with a re-manufactured unit with the best warranty for the least amount of $. Call every auto parts store in your area for prices.
2007-12-05 08:03:23 · answer #4 · answered by Country Boy 7 · 0⤊ 0⤋
i had a trunk light stay on and do that to me one time. make sure all your lights are out. there also could be a minor shorts somewhere or a bad ground. auto supply will usually do a free easy check for drainage. they won't pull off parts and check each, unless you pay for that. don't ever buy battery at walfart though!
2007-12-05 08:09:30 · answer #5 · answered by Anonymous · 0⤊ 0⤋
You could have a parasitc power drain thru the radio. Or you could have a drain thru any other component
2007-12-05 07:55:37 · answer #6 · answered by dodgedart 2 · 0⤊ 0⤋
how old is the battery,also have your charging system checked most garages may do it for free, also check for
loose belts.
2007-12-05 07:56:52 · answer #7 · answered by Anonymous · 0⤊ 0⤋
it might be your alternater.
2007-12-05 07:59:54 · answer #8 · answered by Anonymous · 0⤊ 0⤋